search for: 3468b6d

...struct backend *, struct connection *conn, uint32_t count, uint64_t offset, uint32_t flags); + int (*can_zero) (struct backend *, struct connection *conn); + int (*can_fua) (struct backend *, struct connection *conn); }; /* plugins.c */ diff --git a/src/plugins.c b/src/plugins.c index dba3e24..3468b6d 100644 --- a/src/plugins.c +++ b/src/plugins.c @@ -358,6 +358,26 @@ plugin_can_trim (struct backend *b, struct connection *conn) return p->plugin.trim != NULL; } +static int +plugin_can_zero (struct backend *b, struct connection *conn) +{ + debug ("can_zero"); + + // We always...

I still need to add testsuite coverage. Perhaps it might be easier if I create a new '--filter=log logfile=foo' filter that produces a log of which commands a client sent, then compare the log using a known client that uses write_zeroes (qemu-io works well) both with and without --filter=nozero to prove that the change in advertisement changes the commands sent over the wire (that would